Why must you drive slowly now, and be ready to brake?

Your answer is correct because you need to drive slowly and be ready to brake due to the pedestrian. According to German traffic rules, when you see pedestrians near a bus stop, they might suddenly step onto the road, for example to board or leave the bus. This creates a potential hazard. Therefore, you must reduce speed, pay close attention, and be prepared to stop quickly to ensure pedestrian safety. The bus itself may be stationary, but the presence of pedestrians near the bus stop is the primary reason for caution here. This rule helps prevent accidents involving pedestrians crossing unexpectedly near buses.